Dental plate brush



May 19, 1 931. H, CAVE 1,806,519

DENTAL PLATE BRUSH Filed Aug. 4. 192? '0 the handle.

Patented May 19, 1931 UNITED STATS oFFIcE HENRY CAVE, OF HARTFORD, CONNECTICUT, ASSIGNOR TO THE FULLER BRUSH COM-- PANY, OF HARTFORD,'CONNEGTICUT, A CORPORATION OF CONNECTICUT V DENTAL PLATE BRUSH Application filed. August 4, 1927. Serial No. 210,500.

My invention relates to that class of brushes particularly applicable for use in cleaning dental plates, and an object of my invention, among others, is the production of a brush of this type that shall be especially eflicient in cleaning dental plates of various constructions.

One form of a brush embodying my inven tion and in the construction and use of which the objects herein set out, as well as others,

may be attained, is illustrated in the accompanying drawings, in which- Figure 1 is a side view of my improved brush.

Figure 2 is a similar view, but looking from a point at right angles to the point of view of Figure 1.

Figure 3 is a view showing a little diiferent form of the tip of the brush.

The intricate forms embodied in the construction of dental plates makes it desirable to have a brush by means of which every portion of the plate may be reached in order to be cleaned, and the brush herein illustrated and 25 described is designed especially for this purose. V

p In the accompanying drawings the numeral 5 indicates the handle of my improved brush that may be of any suitable form and of any desired material with the brush extending partially in line with the handle. This brush may be of any suitable and desired construction, as herein shown it being of that type commonly referred to as twisted-in brushes, that is the cleaning material commonly in the form of bristles are secured to a core by twisting a wire, and in the operation of twisting such wires.

The shank 6 of this brush is provided with '40 bristles, preferably up to the end of the handle, said shank extending for some distance in line with the handle and terminating in a loop 7 This shank, as well as the greater part of the brush, comprises a core of twisted wire 43 and and the brush material, all of which is of substantially cylindrical form and of substantially even diameter from the handle to a point comparatively near the tip, the shank being bared-at its outer end for insertion in The diameter of the brush is such as to enable a loop in the shape of a ring to be formed with the clear space entirely around the loop within it. The straight part of the brush or shank enablesthe difierent grooves and the crevices between the teeth to be readily reached and cleaned, and the construction of the loop is such, by reason of its curves, as to enable it to be readily manipulated in the cleaning operation and to enable it to reach all portions of all of the grooves in a plate.

This loop, as to the form shown in Figures 1 to 3, is somewhat in the shape of a hook, the tip 8 being spaced from the other portion of the loop thereby creating an opening 9 at the outer end of the brush. This tip is tapered in form and enables it to be readily inserted into and through the clasp with which dental plates are commonly provided, and its tapered form is of especial advantage, not only in permitting the brush to accommodate itself to clasps of diiferent sizes, but in permitting ready insertion in clasps of any size.

The form of the brush shown in Figure 3 is very similar to that shown in Figures 1 and 2, except that the tip is larger and somewhat longer, extending substantially parallel with the shank for a short distance instead of inclining outwardly away from the shank as in Figure 1. Each of these forms will be found to readily adapt themselves to the cleaning of plates of different shapes and contours.

In accordance with the provisions of the patent statutes I have described the principles of operation of my invention, together with the device which I now consider to represent the best embodiment thereof, but I desire to have it understood that the device terminal end of the loop directed toward the handle, said terminal end being spaced from the outwardly extending portion of the brush element and defining a restricted space communicating with a larger area within the loop.

2. A dental plate brush comprising a handle with a brush element projecting therefrom, said element including a core covered with cleaning material of cylindrical shape axially extending from the handle with the outer end of the brush element reversely bent to form a loop, the inwardly directed end of the brush element being directed toward the handle and terminating adjacent the inner end of the loop in spaced relation to the outwardly extending portion and said inwardly dir icted end being tapered from a larger dimension within the loop to a smaller dimension at the end thereof.

HENRY CAVE. 

